Qr Code In Vb6 Instant

Add a PictureBox control (named Picture1) and a CommandButton (named Command1) to your form to test the code.

Concept: call a command-line QR generator (e.g., qrencode, zxing-cli, or any EXE that produces PNG) from VB6, then load the PNG into a PictureBox or Image.

Steps:

VB6 example (using Shell and LoadPicture):

Private Sub GenerateQRCode_CLI(text As String, outPath As String)
    Dim cmd As String
    Dim pid As Long
    cmd = "qrencode -o """ & outPath & """ -s 4 -m 1 """ & Replace(text, """", "\""") & """"
    pid = Shell(cmd, vbHide)
    ' Simple wait — not robust for long tasks
    DoEvents
    ' Load into PictureBox1
    PictureBox1.Picture = LoadPicture(outPath)
End Sub

Notes:

First, download QRCodeLib from GitHub or other sources. Then add reference to your project.

' Add reference: Project -> References -> "QRCodeLib"
Private Sub Command1_Click()
Dim QR As QRCodeLib.QRCode
Set QR = New QRCodeLib.QRCode qr code in vb6
' Create QR code image
Dim img As stdole.IPictureDisp
Set img = QR.EncodeData("Your text here", 10) ' 10 = size/version
' Save to file
SavePicture img, "C:\qrcode.bmp"
' Display in picturebox
Picture1.Picture = img

End Sub

Another option is to use the free QRCode.com DLL (by MW6 Technologies’ legacy freeware). The method is similar: reference the DLL and call CreateQRCode.

Dim QR As New QRCodeLib.QRCode
Picture1.Picture = QR.Create("DATA", 4)  ' 4 = error correction level